Wasnt pure and actual Cavalry more of a scouting force then a full fledged combat force during these days?
Indeed. But the cavalry had two tasks: Scouting the enemy movements and protecting the flanks of the moving army.
But in many battles, they took position of important objectives of the battlefield and defended the first waves, til the main body of infantry arrived.
But you did not see many cavalry charges on horse backs, like back in the napoleonic age.